The First Descendant

Defense Master Module (Impact Rounds)

Beginner's Guide and Advanced Tips and Tricks
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Season 1 | New Update
★ New Characters: Hailey and Ultimate Freyna
☆ Season Guides: Battle Pass | Invasion Guide | ETA-0
☆ New Void Interception: Death Stalker
☆ New Weapon: Frost Watcher

Defense Master is a Impact Rounds module in The First Descendant. Read on to learn how to get Defense Master, its effects, and more!

How to Get Defense Master

Kingston - Abandoned Magister Lab Target Vulgus
Kingston (Normal) - Vulgus Occupied Buildings Mission Monster
Sterile Land (Hard) - Kuiper Refinery Complete
Sterile Land (Hard) - The Forgottense Mission Monster
Sterile Land (Hard) - Unknown Laboratory Mission Monster
Sterile Land (Normal) - Anticipated Ambush Point Mission Monster
Sterile Land (Normal) - Biological Research Facility Mission Monster
Sterile Land (Normal) - Classified Area: Vulgus Strategic Outpost Mission Monster
Sterile Land (Normal) - Deception Transmitter Mission Monster
Sterile Land (Normal) - Defense Garrison Rally Point Mission Monster
Sterile Land (Normal) - External Reactor Mission Monster
Sterile Land (Normal) - High-Powered Jammer Mission Monster
Sterile Land (Normal) - Kuiper Refinery Complete
Sterile Land (Normal) - Kuiper Refinery Mission Monster
Sterile Land (Normal) - Kuiper Storage Tank Mission Monster
Sterile Land (Normal) - Large Nuclear Reactor Mission Monster
Sterile Land (Normal) - Logistics Facility Mission Monster
Sterile Land (Normal) - Rockfall: Vulgus Strategic Outpost Mission Monster
Sterile Land (Normal) - The Barracks Mission Monster
Sterile Land (Normal) - The Base’s Power Grid Mission Monster
Sterile Land (Normal) - The Forgottense Mission Monster
Sterile Land (Normal) - The Repository: Vulgus Strategic Outpost Mission Monster
Sterile Land (Normal) - Unknown Laboratory Mission Monster
Sterile Land (Normal) - Void Fusion Reactor - Sterile Land Restricted Zone Mission Monster
Sterile Land (Normal) - Weapon Processing Facility Mission Monster
Sterile Land (Normal) - Weapons Engineering Facility Mission Monster
White-night Gulch (Hard) - Bio-Lab Mission Monster
White-night Gulch (Hard) - Mystery's End Mission Monster
White-night Gulch (Hard) - Shipment Base: Vulgus Strategic Outpost Mission Monster
White-night Gulch (Hard) - Water-cooling Recording Device Complete
White-night Gulch (Normal) - Altar Mission Monster
White-night Gulch (Normal) - Bio-Lab Mission Monster
White-night Gulch (Normal) - Border Line of Truth Mission Monster
White-night Gulch (Normal) - Cave Rally Point Mission Monster
White-night Gulch (Normal) - Decoy Operation Zone Mission Monster
White-night Gulch (Normal) - Deployment Area of the Order’s Forces Mission Monster
White-night Gulch (Normal) - Eye of Truth Mission Monster
White-night Gulch (Normal) - Forgotten Comms Device Mission Monster
White-night Gulch (Normal) - Fortress Control Facility Mission Monster
White-night Gulch (Normal) - Fortress Courtyard Mission Monster
White-night Gulch (Normal) - Fortress Outskirts Mission Monster
White-night Gulch (Normal) - Hatchery: Vulgus Strategic Outpost Mission Monster
White-night Gulch (Normal) - Lower Hatchery Mission Monster
White-night Gulch (Normal) - Mystery's End Mission Monster
White-night Gulch (Normal) - Order Supply Warehouse Mission Monster
White-night Gulch (Normal) - Order's Patrol Beat Mission Monster
White-night Gulch (Normal) - Order's Veil Mission Monster
White-night Gulch (Normal) - The Mountaintops: Vulgus Strategic Outpost Mission Monster
White-night Gulch (Normal) - Triumphal Arch Mission Monster
White-night Gulch (Normal) - Upper Hatchery Mission Monster
White-night Gulch (Normal) - Void Fusion Reactor - White-night Gulch Hatchery Mission Monster
White-night Gulch (Normal) - Void Fusion Reactor - White-night Gulch Mountaintops Mission Monster
White-night Gulch (Normal) - Void Fusion Reactor - White-night Gulch Observatory Mission Monster
White-night Gulch (Normal) - Water-cooling Recording Device Complete
White-night Gulch (Normal) - Water-cooling Recording Device Mission Monster
Legend
Mission Monster - Any of the enemies encountered in the mission can drop the module.
Complete - The module can be received after completing the mission.
Amorphous Material Pattern: XXX Required - Choose the Amorphous Material Pattern after defeating the Colossi in an Intercept Battle.
Descendant Required - Open the Encrypted Vault using the required descendant.
Intercept Battle - Defeat the indicated Void Intercept Boss.

Defense Master Basic Info & Effects

Defense Master Basic Info
The First Descendant - Defense Master.png Defense Master Capacity 6
Socket Rutile
Class
The First Descendant - Impact Rounds Icon.png Impact Rounds
Effects
When defeating an enemy, DEF +X% for Xs (Cooldown Xs)

Details Per Level

Lvl Effect Capacity Kuiper Shard Gold
0 When defeating an enemy, DEF +128.3% for 10s (Cooldown 25s) 6 - -
1 When defeating an enemy, DEF +128.3% for 10s (Cooldown 24s) 7 900 9000
2 When defeating an enemy, DEF +128.3% for 10s (Cooldown 23s) 8 2700 27000
3 When defeating an enemy, DEF +128.3% for 10s (Cooldown 22s) 9 6000 60000
4 When defeating an enemy, DEF +128.3% for 10s (Cooldown 21s) 10 12000 120000
5 When defeating an enemy, DEF +128.3% for 10s (Cooldown 20s) 11 22000 220000
6 When defeating an enemy, DEF +128.3% for 10s (Cooldown 19s) 12 39300 393000
7 When defeating an enemy, DEF +128.3% for 10s (Cooldown 18s) 13 67800 678000
8 When defeating an enemy, DEF +128.3% for 10s (Cooldown 17s) 14 114300 1143000
9 When defeating an enemy, DEF +128.3% for 10s (Cooldown 16s) 15 189300 1893000
10 When defeating an enemy, DEF +128.3% for 10s (Cooldown 15s) 16 309300 3093000

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